Ive used Jarrow ibs formula which is suppose to be a human strain of L. Planturum. It gives me bad die-off. Im not ready for it yet. Candida has to be down to a minumum for probiotics to be effective. Otherwise it just creates a war in your intestines with very uncomfortable symptoms. If the candida is too strong it will just wipe out any probiotic you take and all your left over with is feeling like crap. This has been my experience with them for the last 2 years.